Home / 12,557.98-18,836.41-3,792.63

Finding the Fourth Proportional to 12,557.98, 18,836.41 and 3,792.63

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Solution

The fourth proportional to 12,557.98, 18,836.41 and 3,792.63 is: 5,688.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,557.98 : 18,836.41 = 3,792.63 : x
  2. Step 2: Convert to fraction form
    12,557.98/18,836.41 = 3,792.63/x
  3. Step 3: Cross multiply
    12,557.98x = 18,836.41 × 3,792.63
  4. Step 4: Simplify right side
    12,557.98x = 71,439,533.66
  5. Step 5: Solve for x
    x = 71,439,533.66/12,557.98
  6. Step 6: Final answer
    x = 5,688.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.